html,
body {
  margin: 0;
  padding: 0;
}

.main {
    width: 100%;
    height: calc(100vw * 764 / 1400);
    background-image: url(../asset/main.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: 0 0;
}
.profile {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    padding: 50px;
    justify-items: center;
}
.profile .title {
    font-weight: 600px;
    font-size: 24px;
}
.profile .desc {
    font-size: 14px;
    color: #333;
}
.footer {
    border-top: 1px solid #a8a8a8;
    margin: 0 50px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.footer span {
    margin: 0 20px;
}